Grid leak



March 22,1927. 7 1,621,832

- J. CONNEFS GRID LEAK Filed June 29, 1926 attorney;

Patented Mar. 22, 1927.

UNITED STATES JAMES CORNERS, OF CRESCENT CITY, CALIFORNIA.

GRID

Application filed June 29,

This invention relates to new and useful improvements in grid leaks used. in conmotion with radio receiving sets, and consists in the novel features of construction,

combination and arrangement of parts illustrated in the accompanying drawings and more particularly pointed out in the appended claim.

In the accompanying drawings, which are for illustrative purposes only and are therefore not drawn to scale:

Figure 1 is a side elevation of a grid leak constructed in accordance with my invention and Figure 2 is an enlarged central 1 longitudinal section of the device. I

Referring to the drawings for a more particular description of my invention and in which drawings like parts are designated by like reference characters throughout the several views, my device comprises a central cylinder' 1 of glass or other non-conducting material and the hollow end caps 2 of suitable conducting material. The cylinder -1 contains a liquid solution A of mercury, dis- 2 tilled water and nitric acid, and the ends of the cylinder are hermetically sealed by the caps 2 aforesaid, letter wax 3 being preferably used for this purpose. The caps 2 are preferably formed with cylindrical flangednecks 4 which extend into the ends of the cylinder and spherical body portions 5 terminating in pointed outer ends 6. The liquid solution A preferably consists of about 28 to 30 drops of mercury and nitric acid and enough distilled water to cut acid inorder to avoid forming gas, althoughit LEAK.

1926. Serial No. 119,339.

is obvious that the proportions may be varied, as desired, to give the best possible results. The cylinder 1 and end caps 2 may be of any desired dimensions best suited for 4 0 the'purpose or to meet commercial requirements.

It has been found from experiments that this device sharpens the set, gives more signal strength and natural tone of all instruments that are broadcasted and also eliminates an overload to all vacuum tubes that are installed in a set and thereby gives wireless telegraphy signals clear and distinct and balances the set perfectly and properly by 5 passing the overload of signals through the dectum tube. The device also gives accurate control of regeneration.

From the foregoing description, taken in connection with the drawings, it is thought that the construction, operation and advantages of my invention will be readily understood without requiring a more extended explanation.

Having described my invention, what I claim as new and desire to secure by Letters Patent, is: a

A grid leak comprising an elongated cylinder of non-conducting material containing a solution of mercury, nitric acid and distilled water and hollow spherical caps of conducting material hermetically sealing the ends of the cylinder.

In testimony whereof be hereby afiixes his signature.

JAMES GONNERS. 

